Treatment of abnormal sound of transformer
During the operation of the transformer, due to the alternating magnetic flux, the silicon steel...
hvhipot
hvhipot Double clamp method of ground resistance tester
The advantages of the measurement principle of the ground resistance tester method are: First, the...
How to use insulation resistance tester
1. Before using the insulation resistance tester. Before unpacking and use, it needs to be...
Measuring method of insulation resistance meter
1. Measuring method of insulation resistance meter: (1) Wiring method When measuring the insulation resistance...
The circuit breaker needs to detect resistance?
Exceeding the resistance of the main circuit of the circuit breaker is a major problem...
Megger is suitable for various measurements
The high-voltage megohmmeter is suitable for measuring the resistance value of various insulating materials, transformers...
DC resistance tester measuring circuit
The measurement loop is mainly from the constant current series resonance outputting a stable current...
Common problems of DC resistance tester
Common problems encountered by DC resistance testers: 1. Burn insurance at boot Generally, this kind...
The measured resistance is too large
The reason and solution for the large resistance value of the earth grid grounding resistance...
Precautions for transformer capacity tester
1. The transformer capacity characteristic tester does not allow the no-load tap changer to be...